Cyrus posted an official statement to her Twitter today, which notes that she had been suffering from a sinus infection, for which she took medicine — Cephalexin — that eventually gave her an allergic reaction.

“This type of extreme reaction can last from five to 27 days in these types of cases,” the statement notes. “She will remain hospitalized and is under a doctor’s care until we see some improvement in her condition and is asking for your compassion and privacy at this time. Miley is devastated about missing shows and possibly disappointing her fans.”

While the statement was fairly straightforward, Cyrus’ responses on Twitter were a bit less eloquent. The singer lashed out at those reporting other stories– including rumors of her pregnancy. “So many ignorant stories out there no one is reading the official statement and these dumb asses are scaring my fans,” she tweeted.

So many ignorant stories out there no one is reading the official statement and these dumb asses are scaring my fans. Please read official